4c54f7ef0ccdce702d04f7cd287acbce7ff38607
6
Commits
| Author | SHA1 | Message | Date | |
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 arcattackandClaude Fable 5
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4c54f7ef0c |
Ballistic FX: DAFC muzzle flash + autocannon fire replication (task #61)
The autocannon gains its authentic muzzle effect AND becomes visible when an enemy fires it -- the ballistic-FX gap behind "I only see the AC from my own view." MUZZLE FLASH (the genuine shipped effect, not the cut card): - MUZFLASH.BGF is an orphaned/cut asset (nothing references it) -- so it is NOT rendered. The shipped projectile-gun muzzle effect is DAFC.PFX, which BTDPL.INI documents as "the effect used on all projectile guns" (psfx 6 external / 14 internal): an orange fire-smoke blast (btfx:firesmoke1), maxIssue 25 over ~0.2s so the emitter auto-expires = one burst per shot. - BTFlashMuzzle (mech4.cpp) spawns it on the gun-port SEGMENT via the existing BTStartPfxAttached path; the segment frame sprays -Z out the barrel. Hooked at ProjectileWeapon::FireWeapon (the fire edge). Default ON (BT_MUZZLE=0 disables). AC only -- lasers show their beam, missiles their launch. ENEMY AC FIRE NOW REPLICATES (the real find): - ROOT CAUSE: the subsystem-record replication channel EXISTS and works (mech ticks subsystem->PerformAndWatch(update_stream); Entity::UpdateMessageHandler routes incoming records to GetSimulation(subsystemID-1)->ReadUpdateRecord). The emitter (beam) and MissileLauncher (salvo mirror) both call ForceUpdate() so their fire serializes -> enemy lasers + missiles ARE visible on the peer. The AUTOCANNON set only `simulationFlags |= 0x1` (the +0x28 instance flag, NOT the updateModel bit WriteSimulationUpdate walks) and had NO fire record, so its shot never crossed the wire -- the enemy's cannon was invisible. - FIX (the AC twin of the missile salvo mirror): ProjectileWeapon:: WriteUpdateRecord/ReadUpdateRecord (fire counter + aim) + ForceUpdate() in FireWeapon. The replicant edge-detects the counter and mirrors ONE visual round + DAFC muzzle flash from its own resolved muzzle; a null/untargeted aim streaks straight out the barrel (launchVelocity) instead of toward origin. - Verified live 2-node: the watching node logs REPLICANT AC shots + DAFC flashes at the enemy's gun-port (seg 7), aimed shots fly to the real target; no crashes. TRACER: all ACs author TracerInterval=1 (every round is a tracer); the existing amber streak is acceptable-authentic, so no tracer change was needed. KB: open-questions.md -- CORRECTED the (wrong) earlier note that claimed no subsystem-record channel exists; it does, the AC just wasn't using it. Logged the methodology lesson: the coverage audit finds UNWRITTEN functions, not "reconstructed but inert" ones (a function present but never called -- the AC record + the missile mirror both looked done); a LIVENESS audit would catch that class. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Fable 5
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48c9c8444f |
Fire VISUALS wave: the authored firesmoke sheet, vertex-alpha effect cards, the case-4 wreck dressing
The "fireballs like the demo vids" arc, decomp/content-grounded end to end,
plus the live-play UX batch verified over the same sessions:
FIRESMOKE SHEET (the PFX fireball fix): every firesmokeN_scr_tex in BTFX.VMF
maps the SAME 64x64 tileable noise image bintA (variants differ only in SCROLL
rate) and firesmoke1_mtl colours it through the "fiery" ramp (0.3,0.1,0.1)->
(0.9,0.7,0.3). The particle layer now bakes ramp(lum(bintA)) as its sprite
colour (noise detail in alpha) and SCROLLS it at firesmoke1's authored rate
via a texture-transform; the port's radial soft-edge mask moved to a second
CLAMPed stage so the WRAPPED scroll rolls flame through the sprite without
scrolling the edge away. Old grit x radial bake kept as the no-BINTA fallback.
Impact hits, damage-band smoke and death booms all ride this layer.
AUTHORED TEXTURE SCROLL in the model path: the BMF TEXTURE records carry
SPECIAL " SCROLL u0 v0 du dv" (tag 0x2037); the draw path always supported
per-op scrolling (SetTextureScrolling) but the BGF loader never parsed it, so
every scrolling material rendered frozen. Wired TexRef -> MatInfo -> batch ->
L4TEXOP.doScroll: the flame cards (flamebig/fire5) now roll fire noise.
VERTEX-ALPHA EFFECT CARDS (the "twisted drill bit of fire" fix): FLAMEBIG's
verts carry authored float RGBA -- white-hot base (1.0,0.99,0.97) -> dark-red
tip fading to alpha -0.2 (the DPL clamp convention). The loader kept a flat
batch colour and drew it OPAQUE = a solid orange spike. Corpus sweep: exactly
14 shipped BGFs carry vertex alpha, ALL effect cards (flames, MUZFLASH,
EXDISK_A/B/C, TMST_A/B/C, beam models, DECLOUDS). Such batches now keep the
authored per-vertex gradient and route to the alpha-blend pass, unlit,
colour = texture x gradient, alpha = the vertex fade; sky objects excluded
(drawAsSky + alphaTest passes NEITHER pass filter -- DECLOUDS stays in the
sky pass). MUZFLASH/EXDISK render correctly for free when the muzzle-model
work lands.
WRECK DRESSING (the 1996 ExplosionScripts case-4 transcription): pieces spawn
HIDDEN and reveal 0.25s after the boom (the InstanceSwitch delay, behind the
dnboom flash); flamebig hangs over the pile, Y-BILLBOARDED at the camera
(SetOffsetYaw + a camera-pos getter -- the dpl_SetDCSReorientAxes analog);
the MakeDCSFall settle arms at the reveal with the two authored rates (hulk/
debris -0.025 t^2, fires -0.01 t^2 -- the flames ride above the sinking pile
and die with it at burial). EMPTY-PLACEHOLDER hulk guard: THRDBR.BGF is a
153-byte zero-geometry stub that "loads fine" -- vertex-count check now routes
it to the gendbr fallback (a Thor wreck was invisible). Hulk content census
recorded: AVADBR==MADDBR==VULDBR geometry (palette-only prefix diffs),
RAPDBR==SNDDBR==STIDBR byte-identical -- wreck variety is materials + the
dressing, not unique piles.
LIVE-PLAY BATCH: muzzle resolve uses the named segmentIndex (raw +0xdc read
was layout garbage); forward launch frame (authored MuzzleVelocity +Z vs the
mech's -Z facing); dock-bottom single window (gauge strip appended below the
world viewport, 1100x600 default, BT_DEV_GAUGES_WINDOW=1 restores the separate
window); portrait sec surface unrotated CW; ammo counters live via typed
bridges (BTAmmoBinCountPtr/BTAmmoBinFeeding/BTWeaponAmmoBin -- raw bin+0x180
and a hand-rolled link walk were garbage); fourth fire key ('4' = Pinky);
panel/arc probes de-aliased (%61 prime).
KB: rendering.md (vertex-alpha card family + scroll), combat-damage.md (hulk
census + THRDBR stub), gauges-hud.md (ammo bridges).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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arcattackandClaude Fable 5
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092408041c |
Cockpit: the CONFIG-MODE weapon-regrouping session + the live-play fire fixes (tasks #6+#11)
TASK #6 -- the pod's in-cockpit weapon regrouping, fully reconstructed and live-verified (hold-configure -> tap fire button -> toggle membership -> release-commit): - MechWeapon handlers id 9 ConfigureMappables @004b9550 / id 10 ChooseButton @004b95b8 (binary table @0x511860; the old "Myomers fns" mislabel swept) + the GetMessageHandlers() accessor chain through Emitter/ProjectileWeapon/ MissileLauncher/GAUSS/PPC (empty per-class sets swallowed dispatch). - Mapper vtable truth: +0x38 EnterConfiguration / +0x3C ExitConfiguration / +0x40,+0x44 AddOrErase evt/dir. No "secondary vtable @0050f498", no "CreateTemporaryEventMappings" virtual (RP-name drift; swept incl CLASSMAP). L4 Enter/Exit rebuilt complete: StartMappableButtonsConfigure (the NonMapping 0x10000 <-> Mapping 0x8000 mode flip + the gauge's active-weapon latch) + the held-button re-arm + the 4 fire-button temp maps; only the RIO mapper implements the toggle (Thrustmaster no-ops = can't regroup). - MechSubsystem +0xE8/+0xEC corrected to controlDestination/controlMessageID (ex hostEntity/subsystemId2 mislabel); MechWeapon ctor defaults the destination to &fireImpulse (@004b99a8). - ConfigMapGauge state loop reconstructed (PE-recovered DAT_00518eb4 table; buttonGroup GetMapState sampler -- the "needs ModeManager" guard rationale was wrong). Finding [T1]: the shipped binary NEVER enables this gauge (no SetColor caller) -- authentically dormant; BT_CONFIGMAP=1 is the dev enable. - Dev harness: HOLD 'G' opens the session (BT_CONFIG_SLOT picks the weapon); BT_CONFIG_TEST scripts a headless verify. @004afbc4 corrected to its real Fail-trap body (the guessed AddOrErase(NULL) body would corrupt groups). - Bonus [T1]: the binary MechWeapon ATTRIBUTE table has ELEVEN entries (PercentDone..WeaponState) -- "TriggerState is the only one" was wrong. TASK #11 -- the user-reported live-play regressions (both real bugs): - PHANTOM FIRE: the mech4 bring-up shot block painted an explosion at the victim on its OWN 0.3s cadence whenever fire was held -- desynced once the authentic recharges landed. Retired (the real impact visual flows from each discharge via the messmgr SubmitExplosion). - WEAPON BRICKING (the "cuts out" bug): the Loading->Loaded snap window (+-0.01 around seekV) assumes the pod's LOCKED 60 fps; one port dt-spike jumps it, the byte-verified >1.0 clamp (_DAT_004ba830=0) zeroes readiness, and the weapon sticks in Loading at level ~10000 forever (observed live). Fixed with pod-frame (1/60s) sub-stepping of the binary's own Loading tick -- also fixes the I^2R integral over-heating generators on big steps. NEW GOTCHA CLASS recorded: reconstruction-gotchas #12 (frame-pacing trap). - Duty-cycle measured (max-rate autofire): generators equilibrate in the degradation band (recharge stretch ~3.5-4.4x), the FailureHeat breaker never trips solo, PPCs sustain ~11.8-damage full-charge fire. The slow kill pacing and recharge gaps are the AUTHENTIC heat economy; the pilot's counters (this regrouping UI, generator reassignment, coolant valves) are the reconstruction queue. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Fable 5
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29035028fd |
Cross-pod beams: replicate emitter discharge via subsystem update records
User report: lasers only visible on the window firing them. The peer's replicant emitters never learned the master fired. THE AUTHENTIC PIPE (decomp-verified): - FUN_0041c350 (the "beam keepalive" ServiceDischarge/ContinueDischarge call) does TWO things: queue the LOCAL deferred beam-effect callback (@0x4bac0c) on the app+0x34 manager -- our per-weapon render walk already plays that role -- and set the subsystem DIRTY bit, which maps to the 2007 engine's updateModel / ForceUpdate(). - Replication rides SUBSYSTEM UPDATE RECORDS inside the mech's update message: the roster walk already hands the entity's stream to every subsystem's PerformAndWatch; Simulation::WriteSimulationUpdate serializes each requested updateModel bit; Entity::UpdateMessageHandler routes received records by subsystemID to the subsystem's ReadUpdateRecord. All engine machinery -- the missing pieces were the Emitter's serialize/apply pair + the triggers. CORRECTIONS to the dormant task-33-era transcriptions (never exercised -- nothing ever set updateModel -- so the latent misreads never surfaced): - The weapon-family VTABLE SLOT MAP was swapped: slot 6 = ReadUpdateRecord, 7 = WriteUpdateRecord, 9 = TakeDamage (evidence: Mech hierarchy symmetry + body semantics; @004ba568 resolves an EntityID at rec+0x30 through the entity index -- record semantics, not Damage). Renamed across MechWeapon / Emitter / ProjectileWeapon; the real Emitter::TakeDamage @004bafc8 is undecoded (inherits MechWeapon for now). - Emitter/MechWeapon Write: `*record = 0x38/0x18` is the record LENGTH, not recordID; rec+0x30 is the TARGET's EntityID (GetEntityID()), not a colour -- the old `CopyColor(targetEntity+0x184)` was also a databinding trap. - OVERRIDE-SIGNATURE TRAP: the decls used each class's own shadowing UpdateRecord typedef as the param type, silently NOT overriding the engine virtual (the base ran instead; nothing would ever have serialized). Base-typed params (Simulation__UpdateRecord*), casts inside. - Emitter::ReadUpdateRecord reconstructed (@004ba568): target EntityID resolve (drop unknown non-null targets), MechWeapon alarm apply chain, beam fields. - ServiceDischarge/ContinueDischarge: ForceUpdate() per keepalive tick + one final record at beam end (turns the peer's beam off). - Mech::DrawWeaponBeams extracted from the player-only drive block so the walk runs for REPLICANTS (+ per-mech gun-port cache -- the process-wide statics would have served the player's segment pointers as the replicant's muzzles). VERIFIED 2-node: A fires 57 volleys -> 225 emitter records -> B applies all 225 -> B draws 414 beams (PPC blue / laser red, from A's replicant's own gun ports). Solo un-regressed (150 beams, kill chain, no crash). Also preserved: the full Mech::WriteUpdateRecord @0x4a0c2c recovery (reference/decomp/mech_writeupdate_004a0c2c.disasm.txt) with all 9 record types decoded (pose/alarm/leg-state+heat with the body-channel write-through re-sync, knockdown, death, impact, movementMode) -- transcription deferred; it replicates remote knockdown/death/heat and was not needed for beams. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Opus 4.8
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2bcca26cea |
WAVE 7 Phase A: wire the projectile/missile weapon SUBSYSTEMS byte-exact (un-mislabeled)
An 8-agent decomp-mapping workflow mapped every weapon-family ctor + fire/spawn path
(scratchpad/wave7_maps.txt). KEY IDENTITY CORRECTION via VDATA.h enum (base 3000=0xBB8):
the factory ctor-address comments were right but the built CLASS names were stubs/base --
0xBCD == ProjectileWeapon (was building the base MechWeapon stub)
0xBCE == GaussRifle (NOT MissileLauncher -- was a MissileLauncher stub)
0xBD0 == MissileLauncher (NOT BallisticWeapon -- was a BallisticWeapon stub)
Un-mislabeled + wired via Create<Class>Subsystem bridges (mirroring CreateEmitterSubsystem),
each static_assert-locked byte-exact on the now-locked MechWeapon(0x3F0)/Emitter(0x478) bases:
* ProjectileWeapon (0xBCD, @4bc3fc : MechWeapon, sizeof 0x448)
FIX: AmmoBinConnection was an empty 1-byte struct -> retyped to the binary's 0xC
SharedData::Connection (was making the object 8 bytes short, sliding
MissileLauncher's missileCount off 0x448).
* MissileLauncher (0xBD0, @4bcff0 : ProjectileWeapon, sizeof 0x44C)
FIX: deleted muzzleVelocity (ALIAS of inherited ProjectileWeapon launchVelocity@0x410)
and salvoCount (SHADOW of inherited MechWeapon damageData.burstCount@0x3d4),
keeping the single own field missileCount@0x448.
* GaussRifle (0xBCE, @4bdcb4 : Emitter, sizeof 0x484 = Emitter + Vector3D muzzleVelocity)
DEDICATED bridge (not CreateEmitter): its FireWeapon is a no-op (mov [eax+0x414],0) --
a non-functional weapon in this 1995 build. Also fixed GAUSS.CPP's discharge write
rechargeLevel -> currentLevel@0x414 (the binary writes this+0x414).
Phase A safe-stubs FireWeapon (consume round + recoil, NO spawn): the reconstructed
Projectile (@4be1bc, 0x340) + Missile (@4bf5b4, 0x368) ENTITY classes are NOT spawn-ready
(Entity-base phantom members overflow their New() alloc -> heap corruption; New() takes
(int)this instead of the 0xD4 descriptor; Entity base size unconfirmed 2007-vs-1995, the
Mech 0x638-vs-0x854 problem). The workflow's adversarial verify flagged the live spawn as a
heap-overflow hazard and recommended exactly this phasing. Phase B = the entity byte-exactness
+ descriptor build + New(MakeMessage*) so a fired shot becomes a flying entity that damages.
Factory now 18 of 20 cases wired to real ticking classes (remaining: SubsystemMessageManager
0xBD3 [WAVE 8], Gyroscope 0xBC4 [deferred]). Verified: Mad Cat (LRM/ballistic) + BLH construct
the real weapon classes + tick authentic charge/ammo/heat/recoil, DESTROYED-in-8, 0 crashes,
heapcheck-clean through construction. Energy weapons already damage via the mech4 beam path,
so combat is unaffected.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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arcattackandClaude Opus 4.8
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7b7d465e5e |
Initial commit: bt411 -- standalone Windows BattleTech (Tesla 4.10 port)
Clean, self-contained extraction of the BattleTech-specific work from the
reverse-engineering workspace -- engine + game + content + build, with nothing
from Red Planet or the raw archive dumps. Builds green (Win32) and runs the
single-player drive->animate->target->fire->damage->destroy loop out of the box.
Layout:
engine/ MUNGA + MUNGA_L4 shared 2007 engine, carrying our BT render/loader
work (bgfload/L4D3D/L4VIDEO: BSL bit-slice decode, LOD/ground/shadow
models) + image codec; the minimal rp/ headers the audio HAL needs
game/ reconstructed BT logic + surviving-original BT source + fwd shims
+ WinMain launcher
content/ full runtime tree (BTL4.RES, VIDEO/, GAUGE/, AUDIO/, eggs, BTDPL.INI)
docs/ format specs + reconstruction ledgers
reference/ raw Ghidra pseudocode (recon source-of-truth) + decomp exporter
tools/ MP console emulator + map/resource scanners
One top-level CMake builds munga_engine lib + bt410_l4 game lib + btl4.exe.
All paths relativized (186 fwd shims + ~437 CMake abs paths -> repo-relative);
DXSDK is the one external, overridable via -DDXSDK. Verified: builds to a
byte-identical 2.27MB exe and runs combat (TARGET DESTROYED, 0 crashes) against
the bundled content.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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